The beta type of ganglion cell can be subdivided in Golgi-stained whole mounts of the cat retina according to the branching level of the dendritic tree in the inner plexiform layer. The dendritic branching level of on-beta cells is nearer to the cell body; that of off-beta cells is about 10 μm further outwards. After horseradish peroxidase (HRP) injection into the lateral geniculate nucleus all beta cells were labelled. In this way it is shown that about 55% of all ganglion cells, irrespective of retinal topography, are beta cells. The spatial distribution of on- and off-beta cells was studied from the HRP-labelled material. On-beta cells form a lattice with regular inter-cell spacings ; off-beta cells are also regularly arrayed. The two lattices are superimposed independently of each other. Beta cells are commonly assumed to be associated with the resolution of fine detail in the cat visual system. The mosaic of beta cells imposes some constraints and permits some predictions to be made with respect to the cat’s visual discrimination.
Morphology and mosaic of on- and off-beta cells in the cat retina and some functional considerations
H. Wässle,B. Boycott,R. Illing
Published 1981 in Proceedings of the Royal Society of London. Series B. Biological Sciences
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- Publication year
1981
- Venue
Proceedings of the Royal Society of London. Series B. Biological Sciences
- Publication date
1981-05-22
- Fields of study
Biology, Medicine
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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